Grain-saving device for threshing-machines.



J. A. SCOTT. GRAIN SA'HNG DEVICE FOR THRESHING MACHINES,

APPLICATION FILED JULY 31.19%. I

Patented Aug. 113, 1918 3 SHEETS-SHEET i- Arron/m J. A. SCOTT.

GRAIN SAVING DEVICE FOR THRE$HJNG MACHINES. APPLICATION FILED JULY31.1916.

Patented Aug. 13, 1918.

3 SHEETSSHEET 2.

IIVI/E/VTOR 97% AZ Am,

4 T GRIVEV ,1. A. soon. GRAIN SAVING DEVICE FOR THRESHING MACHINES.

APPLICATION FILED JULY 31,I9I6. I

1. 9%?5 77W I Pate nted Aug. 13, 1918.

3 SHEETS-SHEET 3- imam fl Jam I 33 ATTORNEY "lli . threshed thereby, sothat with the loose Elli i rru m it) ll uiihli G-HAIN'-Sd.VIiING'llllllll'i l'glIlfl llllllit [ill-IRESlEIINGl IVlJiEllEIIMEEl.

1 all whom, it may concern:

7 Be it known that l, JOHN A. zen of the llnitcd Eltutes, residing atOldie home city, in the county of Oklehon'in and State of Qlrluhome,have invented certain new and useful ln'iprovenients in GranrSuving'Devices for Threshing- Machines, of which the following); is uspecification.

in the operution oi threshing machines it is well understood that aconsiderable amount of loose groin and unthrcshed heed s of grain isdischarged with the straw from the inuchine into the wind stacker hopperforming a part of the rear thereof, and withdrawn therefrom by theaction of the stacker ten and ejected through an adjustable stacker pipeinto a stuck or otherwise, where such groin becomes waisted Thisiloo'rr, a citiwuste or loss is nuteriul where the wind stacker-isnot'pro vided with in con for trap ping such grain in the hopperbeioreit reaches the influence of the lien, especially so when the separatingmechanisms of the threshing" machine are not suitubly adjusted forefficiently handling the strew. The heads of gram entering the stuclrerfuel are groin mingled with the straw u considerehle amount is carriedupwurdly therewith through the stacker pipe or chute, end, be ingheavier than strew, the blast to certuin extent separates the grainthere'trom. its this material is forced upwardly "irough the chute atgreet velocity end n'uist follow the turn or elbow thereof, it will beunderstood that the groin follows the upper side i of the chute and slarge proportion of it is driven against the inner side of the elbow,and it is my object to so devise such elbow as to permit the dischargethcrethrough of such. loose grain, utter which I trap the some andreturn it to a receptucle or the threshing machine to be recneuncd orotherwise tree-ted, and thus save the groin which would otherwise becomewasted and :1. total lossv forum it part l'IGllIBOIl l igurel is at sideelevntion of u wind stacker showing my im provcnient applied to the pipeor chute at the turn or elbow thereof; 2 a plan of said elbow; Fig. 3 a.detail sectional view tinnsversely of said elbow showing; my n15rengen'lent of sepuruting hers forming my improved trap; F 1;; d n.perspective oi? said trap, and Fig. 5 n detail sectional view oii themtogether, be raised and lowered.

In the ucconijmn ving draining, which specification, of Letters Potent,Patented drip; llfii, llh llldm Application fil ed July 31, 1916. Seriallil'o. 113,25

the elbow with my improvement applied thereto,

In said drawings the portions marked 5 indicate the straw chember, and 6the fun which withdraws the material from said chamber and ejects itthrough the boot, "7,

and thence out through the stump, 8, endchute, 9, all as is conimon endwell known.

The upper side chute, 9, :itthe point where they ere telescopicallyconnected, or what is commonly termed the elbow, 1 form with openingswhich register with Search other, indicated st 10 in l ig. 2. Oversuidopenings 1 provide e grain trap cons g of a series of hers, ll,prejl"crsbly triangular in cross setion,

which are secured to hinding'plutcs,"l2 end- 13, the upper platelSHbcing of u form which may, be lQtlllll-y' riveted or otherwisesecured "to suite, 9, the outer burs at each side losing held by clips,14:, struck up from the chute material, or otherwise These here 11, asstated, ere preferably triangular in cross sec tion, and arranged inclose proximity to each other so thut a slight space is left betweeii.each, and at their upper ends ouch bar has a substantially semicircularopening, 15, cut therein, so that en ii'icreused separation is providedhetween the here u purpose which will hereinafter appear. This trap,when thus assembled, may he readily installed, and it is oi u lengthwhich. permits it to overlap the openlng in stun'ip,

-8, {Mid extends considerably below the some in order that the openingsin the chute and stump may be at all times spanned thereby regardless ofthe inclination to which the chute may be adjusted.

Above said trap ll place a hood or deiiector, preferably comprising twomembers composed of the segmental sections, 1'? and 18, at bppositesides of the chute, and hinge still end 530, so that they muy of thesesections are turned inwardly toward the chute and constitute conveyers,which communion-l e with a hopper or funnel, 252, other suitable devicefor conveying groin thereinto to be delivered into n discharge pipe, 23,or otherwise.

In operation, as indicated, material. such as straw and the like,passing into the stacker inn 6 is discharged upwardly"thereby at greatvelocity through thehoot 7, aiidthe ice through the stump 8 and chute 9.As the material strikes the upper side of the elbow,

of the stump, 8, end the at this point pier The lower sides, 21, 3.

ill)

loose grain is lriven therefrom between the liars ciiinstitnting thegrain trap, and, striking the deflector or hood above, rebound and fallto either side into the, conveyors 2L, by hich they are delivered tohopper E22, and

-trough discharge pipe into a rec, or said pipe may be led to a point ofdischarge in the threshing machine so that such grain may be deliveredthcreinto and recleaned. In actual practice I have found that by formingthe separating bars triangular in cross section as indicated in l ig.ii, the spaces therehctwcen are larger at the under sides and convergeupwardly, \Ylllvl! arrangement produces guides for catching anddirecting grain upwardly, and as these bars are fiat on op and thespaces at that side heing very limited, any grain which tails thereon orwhich rebounds from the i'letiector above will travel toward eitherside, as the upper sur't'ace of these bars produces in efif'ect a curvedtloor through which the loose grain is prevented from returning byreason of ihe air blast passing beneath. When straws are forced upwardlybetween the bars they are driven forvvardlyby the air blast, and whenthey reach the openings between the upper ends of said bars, they arepulled downwardly into the mass of material by the action of such blast,and clogging or choking of the tap is thus ,-,prevented.

In this n'ianner I have demonstrated that a consalerzmle amount of graincan he saved which has heretofore been wasted. As the tendency 'oittheblast is to drive the material against the elbow at the point where myimproved trap is installed, and by reason v of the slight openingshetween the hars and the deflector or hood, the direction of the airblast does not become disturbed or dissipatcd at the point mentioned.

I claim as my invention:

1. Ina grain saving device for threshing machines, .two pipe sectionstelescopically connected and having openings in their upper sidesregistering with each other, and a grain. trap carried by one oi saidsections and sliding over the opening in the other of said sections.

2. In a giain saving device for threshing machines, a straw chamber, astacker tan communicating therewith, a discharge pipe leading from saidfan and having an opening in its upper side, said pipe having adischarge outlet at its outer end, means over said opening through whichgrain separated from other material delivered from said fan dischargedand intercepted from passing to the disch outlet of. said pipe, andmeans adjacen said sepz-urating means for captui g said separated grain.

3. In grain saving device for threshing machines, a straw chamber. astacker tan communicating therewith, a discharge pipe leading from saidtan and having an opening in its upper side, a series o'l' liarsspanning said opening and spaced apart to permit the discharge of graintherchetuwsn,

which grain separated from other material is intercepted and throughwhich said grain is discharged and prevented from passing to the outerend of said chute.

' 5. In a grain saving device. for threshing machines, a tan, a chuteembodying a discharge outlet in its outer end communicating with saidvtan and provided with an olhow having an openingin its upper side, agrain trap in said opening by which grain separated from other materialis intercepted and through which said grain is discharged and preventedfrom passing to the outer end of said chute, a deflector over said trapfor deflecting such grain, means beneath said deflector for receivingsaid grain, and means "for conveying said grain from. said receiw in gmeans.

6, In a. grain saving device for threshing machines, a curved pipehaving an opening! in its upper side, a series of spaced bars in saidopening, an adjustable deflector supported on said pipe in proximity tosaid bars for deflecting grain passing therehctween, and means forreceiving and conveying such grain from said deflector.

, 7. In a grain saving device for threshing machines, av curved pipehaving an opening in its upper side, and a grain trap in said openingcomprising a series of spaced triangular shaped bars having openingsthcrcbctween through which straw. is withdrawn.

8. In a gain saving device for threshing machines, a pipe having anopening in its upper side, and a grain trap in said pipe comprising aplurality of converging guides along which straw may travel in itsmovement through the pipe and by which grain may be separated from suchstraw.

In testimony whereof I atlix my signature in. presence of two witnesses.

JOHN A. SCOTT.

Witnesses:

IV ALTER M. an'rn CLYDE Fos'ron.

